my Toyota RAV4 engine light is on but runs fine what's the problem

Solution

1. Preparation

• Gather necessary tools and parts for the repair.
• Disconnect the negative battery terminal to prevent any electrical shorts.
• Tools Required: OBD-II scanner, socket set, multimeter.

2. Retrieve and Analyze Codes

• Connect the OBD-II scanner to the vehicle's diagnostic port.
• Turn the ignition to the "ON" position without starting the engine.
• Record any trouble codes displayed and refer to a repair manual for further diagnosis.

3. Inspect and Replace Gas Cap (if necessary)

• Remove the gas cap and inspect for any cracks or damage.
• If damaged, replace it with an OEM or high-quality aftermarket gas cap.
• Reinstall the new gas cap securely and ensure it clicks into place.

4. Clear Codes

• Use the OBD-II scanner to clear the trouble codes after repairs.
• Turn off the ignition and disconnect the scanner from the diagnostic port.

5. Reconnect Battery

• Reconnect the negative battery terminal and ensure it is tight.
• Start the vehicle and observe whether the check engine light remains off.